JP2012182103A - Bonder cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bonder cap capable of improving vehicle mountability of a wire harness by suppressing increase in external dimensions of a wire harness when assembled to the wire harness.SOLUTION: The bonder cap includes: a first slit 11 which is formed by cutting off a peripheral wall of a cap body 10 of the bonder cap 1 formed in a bottomed cylindrical shape and cover-mounted on the bonder of a wire bundle from an open end edge 10a over a predetermined length along the central axis of the cap body 10; and a second slit 12 which is formed by cutting off the peripheral wall from this first slit 11 over the suitable length along the peripheral direction of the cap body 10 and enabling peripheral walls 10b, 10c on both sides of the first slit 11 to be bent and deformed in diameter expansion and contraction directions.

Description

  The present invention relates to a bonder cap that is attached to a bonder on a wire harness routed in a vehicle or the like.

6 to 8 show a conventional bonder cap.
The bonder cap 100 shown here is disclosed in Patent Document 1 below, and includes a cap body 110 and a harness fixing portion 120. The cap body 110 and the harness fixing part 120 are integrally formed of an insulating resin.

  The cap body 110 is formed in a bottomed cylindrical shape with one end closed and the other end opened, and is attached to the bonder 131 of the wire bundle 130 branched from the trunk of the wire harness. Here, the bonder 131 is a name of a concentrated weld end obtained by welding and integrating the conductor end portions 132a of a plurality of electric wires 132 constituting the wire bundle 130.

  The cap body 110 accommodates the bonder 131 so that it does not inadvertently come into contact with surrounding metal. In the conventional case, as shown in FIG. 8, the cap body 110 has a substantially true circular cross section.

  Further, the cap main body 110 shown in FIG. 6 has a jig insertion hole 111 formed in a diametrical direction at the tip side. As shown in FIG. 6, the jig insertion hole 111 is used to temporarily fix the bonder cap 100 to the wiring jig 160 during the wiring process of the wire harness.

  The harness fixing portion 120 is a portion that extends in a tongue shape from the partial region of the open end edge of the cap body 110 along the central axis direction of the cap body 110 (the direction of the arrow X1 in FIG. 6). The harness fixing portion 120 is bound to the wire bundle 130 by the adhesive tape 140 in order to prevent the cap body 110 from falling off the bonder 131.

  Such a bonder cap 100 usually has an allowance in the diameter D so that it can be commonly used for various types of bonders 131 having different numbers of electric wires 132. Therefore, when the bonder cap 100 is attached to the bonder 131 having a small number of the electric wires 132 to be configured, the outer shape of the electric wire bundle 130 to be accommodated is significantly smaller than the diameter D of the cap body 110 as shown in FIG. As shown in FIG. 10, a large gap 170 is often left around the wire bundle 130.

  The wire bundle 130 to which the bonder cap 100 is attached is integrated with the main wire harness 180 by fixing the cap body 110 to the main wire harness 180 with the adhesive tape 90, as shown in FIG. Thus, the main wire harness 180 is routed integrally.

JP-A-9-205719

  However, in the case of a wire harness that is routed in a vehicle or the like, the routing space is often limited, and it is an important issue to manufacture the outer diameter of the wire harness as small as possible.

  However, in the conventional bonder cap 100, the cap body 110 is a simple cylindrical body and has high rigidity. Therefore, when the cap body 110 is fastened to the main wire harness 180 with the adhesive tape 90 as shown in FIG. 11, the cap body is in a state where a large gap 170 remains in the cap body 110 as shown in FIG. 110 is hard to collapse.

  Therefore, the cap main body 110 fixed to the main wire harness 180 is crushed only in a state where a large gap 170 is left around the electric wire 132 as shown in FIG. 12, and the wire harness 180 in which the bonder cap 100 is assembled. Due to the increase in diameter, there has been a problem that the vehicle harness in the wire harness 180 is lowered.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-described problems, and to suppress an increase in the outer dimension of the wire harness when assembled to the wire harness and to improve the vehicle mountability of the wire harness. Is to provide.

The above-described object of the present invention is achieved by the following configuration.
(1) A cap body which is formed in a bottomed cylindrical shape whose one end is closed and the other end is open and is crowned on a bonder of an electric wire bundle; A harness fixing part extending in a tongue shape along the direction of the central axis of the wire and being bound to the wire bundle, and a bonder cap comprising:
A first cut in which the peripheral wall of the cap body is cut from the open end edge over a predetermined length along the central axis, and an appropriate length along the circumferential direction of the cap body from the first cut. A bonder cap, comprising: a second cut that separates the peripheral wall and allows the peripheral walls on both sides of the first cut to bend and deform in the direction of diameter expansion and contraction.

  According to the configuration of (1) above, the cap body mounted on the bonder to be crowned can be deformed so that the peripheral wall on the open end side is bent and deformed in the direction of diameter expansion and contraction by the first cut and the second cut. ing. Therefore, when fixing the wire bundle equipped with the bonder cap to the outer periphery of the main wire harness by tape winding or the like, if tape winding is applied to the region that can be bent and deformed by the first and second cuts, The peripheral wall of the cap body is crushed in a state where no useless gap is left inside the cap body, and the outer diameter of the cap body can be reduced in accordance with the outer dimensions of the bonder.

  Therefore, an increase in the outer dimension of the wire harness when assembled to the wire harness can be suppressed, and the vehicle mountability of the wire harness can be improved.

  According to the bonder cap of the present invention, if the cap main body to be crowned on the bonder is tape-wrapped in the region that can be bent and deformed by the first and second cuts, a useless gap is formed inside the cap main body. The peripheral wall of the cap body is crushed in a state where there is no remaining, and the outer diameter of the cap body can be reduced according to the outer dimensions of the bonder.

  Therefore, an increase in the outer dimension of the wire harness when assembled to the wire harness can be suppressed, and the vehicle mountability of the wire harness can be improved.

It is a top view of one embodiment of the bonder cap concerning the present invention. It is a side view of the bonder cap shown in FIG. It is BB sectional drawing of FIG. FIG. 3 is a side view showing a state in which the bonder cap shown in FIG. 2 is attached to the wire bundle. It is CC sectional drawing of FIG. It is a perspective view of the state temporarily fixed to the wiring jig of the conventional bonder cap. It is a longitudinal cross-sectional view of the state where the crown was attached to the wire bundle of the bonder cap shown in FIG. It is AA sectional drawing of FIG. It is a side view of the bonder cap with which the quantity of the electric wire to constitute was put on the bonder with less than the rated number. It is A1 arrow line view of FIG. It is explanatory drawing of the state by which the conventional bonder cap with which the wire bundle was mounted | worn was fixed to the wire harness of the trunk line. It is explanatory drawing of the collapsed state of the conventional bonder cap fixed to the wire harness of the trunk line.

  Hereinafter, a preferred embodiment of a bonder cap according to the present invention will be described in detail with reference to the drawings.

  1 to 5 show an embodiment of a bonder cap according to the present invention. FIG. 1 is a plan view of an embodiment of the bonder cap according to the present invention. FIG. 2 is a plan view of the bonder cap shown in FIG. 3 is a cross-sectional view taken along line BB in FIG. 2, FIG. 4 is a side view in which the bonder cap shown in FIG. 2 is attached to the wire bundle, and FIG. 5 is a cross-sectional view taken along line CC in FIG. .

  As shown in FIGS. 1 and 2, the bonder cap 1 of this embodiment includes a cap body 10 and a harness fixing portion 20. The cap body 10 and the harness fixing portion 20 are integrally formed of an insulating resin material having flexibility as appropriate.

  The cap body 10 is formed in a bottomed cylindrical shape with one end closed and the other end open, and is covered with a bonder (not shown) of a wire bundle 30 composed of a plurality of wires 31 as shown in FIG. Installed.

  The harness fixing portion 20 is a portion that extends in a tongue shape from the partial region of the open end edge 10a of the cap body 10 along the central axis direction of the cap body 10 (the direction of the arrow X2 in FIG. 2). The harness fixing portion 20 is bound and fixed to the wire bundle 30 with an adhesive tape (not shown) or the like in order to prevent the cap body 10 from falling off the bonder.

  In the case of this embodiment, the cap main body 10 is provided with a first cut 11 and a second cut 12.

  As shown in FIG. 1, the first notch 11 separates the peripheral wall of the cap body 10 from the open end edge 10 a over a predetermined length along the central axis of the cap body 10.

  As shown in FIGS. 1 and 2, the second cut 12 separates the peripheral wall from the first cut 11 over an appropriate length along the circumferential direction of the cap body 10. The second notch 12 enables the peripheral walls 10b, 10c on both sides of the first notch 11 to bend and deform in the direction of diameter expansion / contraction.

  According to the bonder cap 1 of the embodiment described above, the cap body 10 to be mounted on the bonder has the first notch 11 and the second notch 12 in the peripheral walls 10b and 10c on the open end edge 10a side. Therefore, it is possible to bend and deform in the direction of expansion / contraction of the diameter. Therefore, when the wire bundle 30 with the bonder cap attached is fixed to the outer periphery of the main wire harness by tape winding or the like, a region that can be bent and deformed by the first notch 11 and the second notch 12 (FIG. When the tape is wound on the region L1) shown in FIG. 4, the peripheral walls 10b and 10c of the cap body 10 are crushed so as not to leave a useless gap inside the cap body 10, as shown in FIG. Thus, the original outer diameter D1 of the cap body 10 can be reduced to a height dimension H1 corresponding to the outer dimension of the bonder.

  Therefore, an increase in the outer dimension of the wire harness when assembled to the wire harness can be suppressed, and the vehicle mountability of the wire harness can be improved.

  The bonder cap of the present invention is not limited to the above-described embodiment, and appropriate modifications, improvements, and the like are possible.

  For example, the cap body is not limited to the bottomed cylindrical shape of the embodiment, but can be formed in a bottomed cylindrical shape having a polygonal cross section as appropriate.

  In the above-described embodiment, the second cut 12 is provided so as to extend in the circumferential direction from the terminal end of the first cut 11, and the first cut 11 and the second cut 12 are approximately T. It is in a form connected in a letter shape. However, the end of the first cut 11 may extend beyond the second cut 12 (that is, the first cut 11 and the second cut 12 cross each other).

DESCRIPTION OF SYMBOLS 1 Bonder cap 10 Cap main body 10a Open edge 10b, 10c Perimeter wall 11 1st notch 12 2nd notch 20 Harness fixing | fixed part 30 Electric wire bundle

Claims (1)

A cap body that is formed in a bottomed cylindrical shape with one end closed and the other end open and is mounted on a wire bundle bonder, and a central axis of the cap body from a partial region of the open end edge of the cap body A bonder cap comprising a harness fixing portion extending in a tongue shape along the direction and bound to the wire bundle,
A first cut in which the peripheral wall of the cap body is cut from the open end edge over a predetermined length along the central axis, and an appropriate length along the circumferential direction of the cap body from the first cut. A bonder cap, comprising: a second cut that separates the peripheral wall and allows the peripheral walls on both sides of the first cut to bend and deform in the direction of diameter expansion and contraction.

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